Managing Beam Failure Recovery Random Access

2. The method of claim 1, wherein initiating CBRA comprises transmitting a PRACH preamble selected by the mobile device.

4. The method of claim 1, wherein determining that CFRA resources have not been configured comprises determining that a downlink beam or quasi-colocation (QCL) assumption for a downlink reference signal (DL RS) that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption.

5. The method of claim 4, wherein determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption comprises determining that the downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any activated transmission configuration indicator (TCI) state for one or more of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH).

6. The method of claim 4, wherein determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption comprises determining that the downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any activated TCI state for a PDCCH having a CORESET that is monitored for beam failure detection.

7. The method of claim 4, wherein determining that CFRA resources have not been configured comprises determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption and an uplink beam or spatial relation for a physical random access channel (PRACH) is different from any active uplink beam or spatial relation.

8. The method of claim 1, wherein determining that CFRA resources have not been configured comprises determining that an uplink beam or spatial relation for a physical random access channel (PRACH) is different from any active uplink beam or spatial relation.

9. The method of claim 1, wherein determining to reset a PUCCH beam to a PRACH beam based on one or more PRACH characteristics after a threshold number of symbols following a successful reception of a DCI comprises determining to reset the PUCCH beam to a PRACH beam based on one or more PRACH characteristics after a threshold number of symbols from a last symbol of a first PDCCH reception where the mobile device detects a DCI format with a cyclic redundancy check (CRC) scrambled by a cell radio network temporary identifier (C-RNTI), and until the mobile device has received an activation command to configure spatial relation information for a PUCCH or has received spatial relation information for one or more PUCCH resources.

12. The mobile device of claim 11, wherein the processor is further configured with processor-executable instructions to perform operations such that initiating CBRA comprises transmitting a PRACH preamble selected by the mobile device.

14. The mobile device of claim 11, wherein the processor is further configured with processor-executable instructions to perform operations such that determining that CFRA resources have not been configured comprises determining that a downlink beam or quasi-colocation (QCL) assumption for a downlink reference signal (DL RS) that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption.

15. The mobile device of claim 14, wherein the processor is further configured with processor-executable instructions to perform operations such that determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption comprises determining that the downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any activated transmission configuration indicator (TCI) state for one or more of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH).

16. The mobile device of claim 14, wherein the processor is further configured with processor-executable instructions to perform operations such that determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption comprises determining that the downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any activated TCI state for a PDCCH having a CORESET that is monitored for beam failure detection.

17. The mobile device of claim 14, wherein the processor is further configured with processor-executable instructions to perform operations such that determining that CFRA resources have not been configured comprises determining that a downlink beam or QCL assumption for a DL RS that is mapped to the selected RACH occasion is different from any active downlink beam or QCL assumption and an uplink beam or spatial relation for a physical random access channel (PRACH) is different from any active uplink beam or spatial relation.

18. The mobile device of claim 11, wherein the processor is further configured with processor-executable instructions to perform operations such that determining that CFRA resources have not been configured comprises determining that an uplink beam or spatial relation for a physical random access channel (PRACH) is different from any active uplink beam or spatial relation.

22. The method of claim 21, further comprising receiving a PUCCH message on a same beam as a PRACH transmission.

25. The base station of claim 24, wherein the processor is further configured with processor-executable instructions to perform operations further comprising receiving a PUCCH message on a same beam as a PRACH transmission.